1193463-03-4Relevant articles and documents
A Multi-Stimuli-Responsive Oxazine Molecular Switch: A Strategy for the Design of Electrochromic Materials
Wang, Xiaojun,Gu, Chang,Zheng, Hongzhi,Zhang, Yu-Mo,Zhang, Sean Xiao-An
, p. 1206 - 1212 (2018)
A multi-state and multi-stimuli-responsive oxazine molecular switch that combines an electro-base property and sensitive base/acid-responsive properties was designed and synthesized. The multi-state structures of the molecular switch, with different colors, were predicted by comparing the optical properties with reference molecules and confirmed by using NMR spectroscopy. The color-switching mechanism under stimulation with acids and bases was investigated by using DFT calculations. Three single states can be obtained and the switching is unidirectional under acid and base stimulation. The electrochromic phenomenon of the molecular switch, which combines its electro-base and base-sensitive properties, was demonstrated. An electrochromic device that exhibited good electrochromic properties with excellent reversibility (2000 cycles) and high coloration efficiency (804 cm2 C?1) was successfully constructed.
A merocyanine-based dual-mode optical probe for detection of hydrazine and its bioimaging application in vitro and vivo
Guo, Xiumei,Li, Shanshan,Mu, Shuai,Zhang, Yintang,Liu, Xiaoyan,Zhang, Haixia
, (2020)
In this paper, a Merocyanine-based turn-on probe (McyA) has been developed for colorimetric and fluorescent dual-mode detection of N2H4 via an intra-molecular charge transfer (ICT) mechanism. In the presence of N2H4/
A hemicyanine-based selective and sensitive colorimetric and fluorescent turn-on probe for Cu2+
Zhu, Dongjian,Luo, Yanghe,Shuai, Liang,Xie, Wei,Yan, Xiaowei,Duan, Zhenhua,Cai, Wen
, p. 5326 - 5329 (2016)
A hemicyanine-based colorimetric and fluorescent turn-on probe 2 was designed and synthesized. The probe displayed a rapid response time, high sensitivity and high selectivity for Cu2+over other metal ions. Moreover, the probe can detect Cusup
A highly sensitive hemicyanine-based fluorescent chemodosimeter for mercury ions in aqueous solution and living cells
Chen, Yu,Yang, Chengyu,Yu, Zhenni,Chen, Bo,Han, Yifeng
, p. 82531 - 82534 (2015/10/12)
A novel hemicyanine-based fluorescence turn-on chemodosimeter for Hg2+ by mercury triggered hydrolysis of the vinyl ether group has been reported. The probe has the unique advantages of easy-preparation, good water solubility, excellent selectivity, high sensitivity, and fast response time (～60 s) towards Hg2+ in aqueous solution. Furthermore, the probe is demonstrated to be qualified to detect Hg2+ in living cells.
A colorimetric and ratiometric fluorescent probe for distinguishing cysteine from biothiols in water and living cells
Han, Qingxin,Shi, Zhaohua,Tang, Xiaoliang,Yang, Lizi,Mou, Zuolin,Li, Jing,Shi, Jinmin,Chen, Chunyang,Liu, Wei,Yang, Huan,Liu, Weisheng
, p. 5023 - 5030 (2014/07/07)
A merocyanine-based highly selective colorimetric and ratiometric fluorescent probe is described for Cys detection in water and diluted deproteinized human serum. Upon reaction with Cys in aqueous buffer solution, the probe showed a dramatic color change from faint yellow to pink and remarkable ratiometric fluorescence enhancement signals were also observed, which are ascribed to an intramolecular charge transfer (ICT) process. This strategy was based on modulating the merocyanine π-electron system by conjugation and removal of the acrylate group to release the chromophore group, resulting in a specific colorimetry and fluorescence response. The probe has low cytotoxicity and good cell permeability. It is readily employed for assessing the change of the intracellular Cys level. This journal is the Partner Organisations 2014.
Efficient fluorescent chemosensors for HSO4- based on a strategy of anion-induced rotation-displaced H-aggregates
Chang, Jiajia,Lu, Yan,He, Song,Liu, Chang,Zhao, Liancheng,Zeng, Xianshun
supporting information, p. 6259 - 6261 (2013/08/23)
A novel fluorometric sensing strategy based on the anion-induced rotation-displaced H-aggregates of styrylindolium dyes was employed to enhance the selectivity of fluorescent chemosensors for HSO4- detection. The marvelous anion-indu
2-Styrylindolium based fluorescent probes visualize neurofibrillary tangles in Alzheimer's disease
Gu, Jiamin,Anumala, Upendra Rao,Lo Monte, Fabio,Kramer, Thomas,Heyny Von Haussen, Roland,Hoelzer, Jana,Goetschy-Meyer, Valerie,Mall, Gerhard,Hilger, Ingrid,Czech, Christian,Schmidt, Boris
, p. 7667 - 7671 (2013/02/22)
We evaluated 2-styrylindolium derivatives (6-11) as novel and selective probes for neurofibrillary tangles (NFTs) on brain sections of AD patients. The staining experiments indicated that these compounds may bind selectively to NFTs in the presence of ss-amyloid (Ass) plaques. Cell free binding assays confirmed that 2-[2-[4-(1-pyrrolidinyl)phenyl]ethenyl]-1,3,3-trimethyl-3H- indolium iodide (9) and 2-[2-[4-(diethylamino)phenyl]ethenyl]-1-butyl-3,3- dimethyl-3H-indolium iodide (11) display excellent affinities to Tau-aggregates (IC50 values of 5.1 and 1.4 nM, respectively) in the displacement of Thiazin Red R. These probes have good solubility in distilled water and low or no cytotoxicity in zebrafish embryo and liver hepatocellular carcinoma cell assays.
Synthesis and properties of molecular switches based on the opening and closing of oxazine rings
Deniz, Erhan,Cusido, Janet,Swaminathan, Subramani,Battal, Mutlu,Impellizzeri, Stefania,Sortino, Salvatore,Raymo, Fran?isco M.
experimental part, p. 20 - 28 (2012/04/17)
We designed and synthesized a family of molecular switches each pairing an oxazine ring to a chromophoric fragment. Under the influence of either chemical or optical stimulations, the oxazine ring opens to bring the chromophoric appendage in conjugation w
A colorimetric and fluorescent Merocyanine-based probe for biological thiols
Wang, Shu-Ping,Deng, Wu-Jian,Sun, Dan,Yan, Min,Zheng, Hong,Xu, Jin-Gou
experimental part, p. 4017 - 4020 (2009/12/06)
A new "dual-mode" chromogenic and fluorescent turn-on probe (2) for the selective sensing of biological thiols is reported. In MeOH-H 2O cosolvent at physiological pH 7.40 (MeOH-H2O = 3:7), biological thiols cleave the 2,4-dinitroben
